>>22891306 Thank you baker
Previously,
What is a metamaterial?
https://en.m.wikipedia.org/wiki/Metamaterial
Bismuth magnesium zinc https://tothestars.media/blogs/press-and-news/material-of-interest-magnesium-zinc-bismuth?srsltid=AfmBOoqWKodL5771yJHxDwx5W-ua7_1bP_ibvE4VmYFnEx_oUNXidodr